Despite having the same name and similar themes, it is not related to "The Pill", written by Scottish folk musician Matthew McGinn and performed in the United States by Pete Seeger.
"The Pill", written by Lorene Allen, Don McHan, T. D. Bayless, and Loretta Lynn, is a comic-tinged song about birth control.
Nevertheless, it earned her more press and attention outside the country market than anything she had ever recorded before and ultimately became her highest-charting pop single, peaking at #70 on the Hot 100.
Recorded in 1972 and held back by her label, the song was finally released in 1975, Lynn's first single that year.
[1] It was a rare liberal stand on Lynn's part, who otherwise was a socially conservative Christian[2] and tended to avoid overt sociopolitical stances in her music when she could.